WO2011021794A2 - 탄소나노튜브-금속입자 복합 조성물 및 이를 이용한 발열 조향핸들 - Google Patents
탄소나노튜브-금속입자 복합 조성물 및 이를 이용한 발열 조향핸들 Download PDFInfo
- Publication number
- WO2011021794A2 WO2011021794A2 PCT/KR2010/005041 KR2010005041W WO2011021794A2 WO 2011021794 A2 WO2011021794 A2 WO 2011021794A2 KR 2010005041 W KR2010005041 W KR 2010005041W WO 2011021794 A2 WO2011021794 A2 WO 2011021794A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- carbon nanotube
- solution
- metal
- carbon
- metal particle
- Prior art date
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- 239000002041 carbon nanotube Substances 0.000 title claims abstract description 125
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- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 claims description 2
- 230000002706 hydrostatic effect Effects 0.000 claims description 2
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Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
- B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
- B62D1/04—Hand wheels
- B62D1/06—Rims, e.g. with heating means; Rim covers
- B62D1/065—Steering wheels with heating and ventilating means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/18—Non-metallic particles coated with metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/15—Nano-sized carbon materials
- C01B32/158—Carbon nanotubes
- C01B32/168—After-treatment
- C01B32/174—Derivatisation; Solubilisation; Dispersion in solvents
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C26/00—Alloys containing diamond or cubic or wurtzitic boron nitride, fullerenes or carbon nanotubes
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
- H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
- H05B3/14—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
- H05B3/145—Carbon only, e.g. carbon black, graphite
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/40—Heating elements having the shape of rods or tubes
- H05B3/42—Heating elements having the shape of rods or tubes non-flexible
- H05B3/46—Heating elements having the shape of rods or tubes non-flexible heating conductor mounted on insulating base
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C26/00—Alloys containing diamond or cubic or wurtzitic boron nitride, fullerenes or carbon nanotubes
- C22C2026/002—Carbon nanotubes
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/017—Manufacturing methods or apparatus for heaters
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/02—Heaters using heating elements having a positive temperature coefficient
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2214/00—Aspects relating to resistive heating, induction heating and heating using microwaves, covered by groups H05B3/00, H05B6/00
- H05B2214/04—Heating means manufactured by using nanotechnology
Definitions
- the present invention relates to an exothermic steering wheel comprising a carbon nanotube-metal particle composite composition and a carbon nanotube exothermic coating layer formed therefrom.
- a steering wheel of a vehicle is mounted at one end of a steering shaft connected to a steering gear so that the amount of rotation of the steering wheel is transmitted to the steering gear through the steering shaft, and the steering wheel is normally rotated.
- the steering wheel If the steering wheel is parked on the road for a long time in winter, the steering wheel is cooled by the cool air around and the hand is cold when the steering wheel is caught. Cooled by the effect.
- the driver has to wait for a long time until the temperature rises in case of using a hot air heater, and in the case of the wheel cover, there is a problem of insufficient thermal effect, so that a heating steering wheel is built in the steering wheel and a temperature steering means controls the temperature of the steering wheel. Is disclosed.
- heating steering wheel has been disclosed a variety of structures, as shown in Figure 1, wrap the synthetic resin portion 20 formed in the outer portion of the core 10 with a heating pad 30, if necessary, the heating wire
- the pad 30 is wrapped in a leather or cloth wheel cover 40, wherein the heating pad 30 is a heating wire (heating element 31) is wired and the heating means for controlling the temperature by the temperature controller 32 It is.
- the heating wire 31 is generally made of a metal heating element such as nichrome wire, a positive temperature coefficiency (PTC) ceramic heating element, or the like.
- the conventional heating steering wheel has a complicated manufacturing process due to the manufacturing and wrapping process of the heating pad, and the grip is reduced due to the pad (too soft). Since it is formed by a method (a method of dissolving a transfer film in water to transfer a pattern to an object by using a flexible property of water), a pattern transfer layer such as wood or metal cannot be formed on a steering wheel to which a heating pad is attached. In addition, there is a problem that a temperature controller for adjusting the temperature of the heating pad is necessary.
- the conventional heating steering wheel is in direct contact with the tactile sensitive hand, it is preferable to minimize the sudden rise or drop of the temperature by changing the material or the negative resistance value is constantly changing the resistance value.
- transparent carbon nanotubes CNT can be applied to the heating steering wheel as a heating element.
- dispersion of carbon nanotubes is important, and much research has been made to reduce contact resistance between carbon nanotubes and carbon nanotubes.
- the contact resistance between the carbon nanotubes and the carbon nanotubes is reduced, the electrical conductivity is lowered and the transparent electrode material can be used as described below.
- Korean Patent Application No. 10-2008-0112799 aims to produce a thin film on a plastic substrate by making a CNT-metal nanoparticle hybrid as a method for reducing contact resistance.
- the hybrid has been shown to reduce the overall resistance of the carbon nanotube thin film by adsorbing a metal precursor on the surface of the carbon nanotube.
- it has been described using a mechanism in which silver nanoparticles grow into clusters on a part of the surface to which silver nanoparticles are adsorbed through heat treatment.
- the resistance value can be reduced, but the silver nanoparticles are difficult to be uniformly adsorbed to the carbon nanotube (CNT) having a stable wall structure, and thus the measured value is not determined for each site. Cause uneven results.
- the heating handle is in direct contact with the tactile hand and should minimize the rapid rise or fall of the temperature due to material or negative resistance values that constantly change.
- the resistance value rises with continuous temperature rise.
- the constant rise in resistance leads to a decrease in current flow, which eventually leads to a short circuit.
- a way to prevent this is to use carbon properly to implement complementary properties.
- the object of the present invention is to solve the above problems, the object of the present invention is a simple manufacturing process, good grip, can form a pattern transfer layer, does not necessarily require a temperature controller and excellent heat transfer efficiency It is to provide a heat steering handle to prevent the heat collection phenomenon.
- the carbon nanotube-metal particle composite composition chemically attaches the metal nanoparticles to the carbon nanotube dispersion solution and has a constant electrical conductivity and is uniformly formed on the front surface, and an exothermic steering wheel whose electrical resistance does not change accordingly.
- the binder is mixed with the carbon nanotube-metal particle composite composition to form a one-component solution, which is uniformly dispersed and coated on the surface of the plastic handle of the 3D structure to generate heat in a precise temperature range by adhesion to the plastic handle. It has a characteristic, and provides a heat steering handle that does not change the resistance value at a temperature change of less than 160 °C.
- the present invention a) preparing a carbon nanotube dispersion solution in which carbon nanotubes are dispersed; b) acid treating the carbon nanotube dispersion solution of step a); c) neutralizing the carbon nanotube dispersion solution of step b); And d) mixing the carbon nanotube dispersion solution of step c) with a metal solution including metal particles, thereby bonding the metal particles to the surface of the carbon nanotubes, thereby providing a carbon nanotube-metal particle composite composition.
- the core to maintain the steering handle rigidity the synthetic resin portion formed on the outer side of the core, the carbon nanotube heating coating layer formed by coating the carbon nanotube-metal particle composite composition on the outer surface of the synthetic resin portion,
- a heat steering handle including an electrode electrically connected to the carbon nanotube heat coating layer to induce heat generation.
- the manufacturing process is simple, and the grip of the exothermic coating layer is good, and a pattern transfer layer such as wood or metal can be formed on the outside of the exothermic coating layer.
- the temperature controller is not necessarily required, and the heat transfer efficiency of the heating coating layer is excellent and there is an effect of preventing heat collection.
- a carbon nanotube-metal particle composite composition in which the metal nanoparticles are chemically attached to the carbon nanotube dispersion solution and the electrical conductivity is consistently formed uniformly on the front surface, and an exothermic steering wheel in which the resistance thereof is not changed electrically is used. Is provided.
- the binder is mixed with the carbon nanotube-metal particle composite composition to form a one-component solution, which is uniformly dispersed and coated on the surface of the plastic handle of the 3D structure to generate heat in a precise temperature range by adhesion to the plastic handle. It is characterized in that the heating steering wheel is provided, which does not change the resistance value at a temperature change of less than 160 °C.
- FIG. 1 is a block diagram of a conventional heating steering wheel.
- FIG. 2 is a plan view of a heat steering handle to which the present invention is applied;
- FIG. 3 is a cross-sectional view taken along the line A-A in FIG.
- FIG. 4 is a cross-sectional view of the heating steering wheel according to another embodiment of the present invention.
- FIG. 5 is a manufacturing process diagram of a heat steering handle to which the present invention is applied.
- FIG. 6 is a manufacturing flow chart of the heating steering wheel applied according to the present invention.
- 7A is a particle model of a general carbon nanotube heating element.
- FIG. 7B is a particle model of a heating element including a carbon nanotube (CNT) and a conductor such as silver (Ag) particles or metal particles.
- CNT carbon nanotube
- Ag silver
- Fig. 8A is an electrical network model of general carbon.
- CNT carbon nanotubes
- Embodiment 9 is a diagram showing the procedure of Embodiment 1 of the present invention.
- Example 10 is a photograph of the exothermic steering wheel to be coated with the solution of Example 1 and Comparative Examples 1 and 2 of the present invention.
- FIG. 11 is a photograph of a finished product leathered to the handle of FIG. 10.
- Example 12 is a durability test result of Example 1 according to the present invention.
- Carbon nanotube-metal particle composite composition comprises the steps of: a) preparing a carbon nanotube dispersion solution in which carbon nanotubes are dispersed; b) acid treating the carbon nanotube dispersion solution of step a); c) neutralizing the carbon nanotube dispersion solution of step b); And d) mixing the carbon nanotube dispersion solution of step c) with a metal solution including metal particles, thereby bonding the metal particles to the surface of the carbon nanotubes.
- the carbon nanotube of step a MWNT (multi wall nanotube); Thin wall nanotube (TWNT); And one or more selected from single wall nanotubes (SWNTs).
- the dispersion solution in step a) may be prepared by dispersing the carbon nanotubes in a solvent.
- step b) one or more selected from nitric acid, sulfuric acid, hydrochloric acid, and perchloric acid may be added to the acid treatment.
- step c) at least one selected from an aqueous sodium hydroxide solution, an aqueous potassium hydroxide solution and an aqueous ammonium hydroxide solution may be added for neutralization.
- the neutralization treatment is performed to reduce the pH to 6 or more.
- the pH is 7.
- metal nanoparticles can be easily oxidized by the residue. Pure metal nanoparticles are obtained and mixed with the acid-treated carbon nanotubes. Thus, when the metal nanoparticles are mixed with the carbon nanotubes without considering pH, the metal nanoparticles are produced by coulomb force. There is room for oxidation by residual acidic ions before physical adsorption.
- the metal particles are neutralized so as not to be attacked by acidic ions, and then the carbon nanotubes are stabilized and the metal particles are chemically In the process of binding, acidic ions do not participate in the reaction.
- step c) the carbon nanotube dispersion solution of step b) and at least one selected from sodium hydroxide solution, potassium hydroxide solution and ammonium hydroxide solution may be mixed using ultrasonic waves.
- 1 type selected from TOAB, 1,2-dichlorobenzene, N-methylpyrrolidone (NMP: N-methlypyrrolidone) and N, N-dimethylformamide (DMF: N, N-dimethylformamide)
- NMP N-methylpyrrolidone
- DMF N, N-dimethylformamide
- the metal salts include AgCl, AgI, AgBr, AgNO 3 , AgCN, and KAg (CN) 2 , but are not limited thereto.
- the metal salt may be dissolved in HNO 3 aqueous solution and then added with a small amount of NH 3 . desirable.
- the metal particles on the surface of the carbon nanotubes in step d) may be at least one selected from Ag, Pt, Pd, Au, Cu, Ni, Al, Ag / Cu, Ag / Ni, and Cu / Ni. Further, the metal particles on the surface of the carbon nanotubes are preferably 10 to 300 nm in diameter.
- the solution of step d) is MEK, MIBK, acetone (acetone), cyclohexanone (cyclohexanone), ketone-based solution, butoxyethyl acetate (butoxyethyl acetate), butyl carbitol acetate (BCA: butyl cabitol acetate) and acetate Dispersing at least one selected from the solutions to prepare a dispersion solution; And it may further comprise the step of mixing the dispersion solution and the binder.
- the binder may be at least one selected from a polyurethane resin, a poly ester resin, and an acrylic resin.
- MWNT multi wall nanotube
- M-110S Microfluidizer
- the aqueous solution of sulfuric acid and nitric acid mixed 3: 1 was ultrasonically mixed with a Sonicator (ULH-700) for 1 hour.
- the mixture was neutralized with aqueous NaOH solution, mixed with 10 ml of TOAB, 10 ml of toluene, and 1 ml of acetaldehyde in DMF aqueous solution, 0.1 g of AgCl was added to the aqueous nitric acid solution, and then concentrated NH 3 was slowly added to the mixture, including RX.
- the mixed solution containing RX was mixed with MWNT containing NaOH and mixed at 80 ° C. for 3 hours to perform a Phase Transfer Reaction, thereby allowing Ag particles to precipitate on the CNT surface.
- the reacted solution was filtered through an aluminum membrane (anodisc, 200 nm) using a filtration device, dispersed in a MEK solution, and then mixed by adding a binder (LG Chemical EXP-7) to the carbon nanotube-metal particle composite according to the present invention.
- a composition was prepared (see FIG. 9).
- MWNT multi wall nanotube
- MWNT multi wall nanotube
- Example 1 and Comparative Examples 1 and 2 were uniformly spray coated on the surface of the plastic handle (Urethane) having a 3D shape. After drying for 2 hours at 100 °C or less in consideration of the deformation deformation temperature of the urethane handle, the measurement was repeated twice with a surface resistance measuring instrument (MCP-HT450) over 3 points (see FIGS. 10 and 11) of the handle. Is shown in Table 1.
- Example 1 After the leather was formed on the handle made through Example 1 according to the present invention to form a finished product (see FIG. 11), a temperature rise test was performed by applying DC12Volt using an IT6720 power supply.
- the finished product was coated with leather, but DC12Volt was applied using an IT6720 power supply, but after 2 minutes, the temperature was increased and a short circuit did not work.
- Comparative Example 2 no current flowed at DC 12 volts.
- Example 1 After the leather was formed on the handle made through Example 1 according to the present invention to form a finished product, it was cooled by standing for 6 hr in a low temperature chamber of -20 °C. After that, the product was taken out at room temperature of 25 ° C., and DC12Volt was applied using IT6720 Power Supply to measure the temperature change of the handle surface with a thermocouple. As shown in the durability test results of FIG. 12, the temperature was raised to a temperature of 25 ° C. or more in one minute and began to feel heat from the handle surface, and reached about 35 ° C. after 5 minutes. It meets the heating handle specification (ES56110-05) which must reach 40 °C within 15 minutes, and the long-term stability test with the PID controller which keeps the handle constant temperature is removed. No deformation of the surface occurred.
- the carbon nanotubes are uniformly organized in the carbon nanotubes, and the carbon nanotube-metal particle composite composition using a substitution reaction may be prepared to prevent the metal nanoparticles from falling off when preparing the dispersion solution. there was.
- the carbon nanotube-metal particle composite composition When the carbon nanotube-metal particle composite composition is made, the covalent bond structure of carbon-nanotubes, which is inherent in carbon nanotubes, and the resistivity of the current transfer are lost, resulting in a current density of about 1000 times that of copper, as well as carbon.
- the charge transfer path of the metal nanoparticles bonded to the nanotubes can simultaneously obtain a property of reducing contact resistance.
- the metal particles should be uniformly organized on each carbon nanotube particles and the metal nanoparticles become strong chemical bonds to the carbon nanotubes, thereby separating the carbon nanotubes and the metal nanoparticles from the coating solution in which the binder is mixed.
- the phenomenon does not occur.
- the carbon nanotube-metal particle composite uniformly coated on the 3D plastic handle shape is strongly bound to prevent negative resistance or metal nanoparticles from being separated and causing contact resistance over time. Can be. It is possible to remain constant and uniform within the heating demand range of the heating handle, rather than simply to lower the electrical conductivity.
- the heating steering handle according to the present invention the core to maintain the rigidity of the steering handle, the synthetic resin portion formed on the outer side of the core, the carbon nanotube-metal particle composite composition according to the present invention on the outer surface of the synthetic resin portion And a carbon nanotube heating coating layer having a coating formed thereon, and an electrode electrically connected to the carbon nanotube heating coating layer to induce heat generation.
- the carbon nanotube exothermic coating layer of the present invention is coated with a carbon nanotube-metal particle composite composition in which carbon nanotube particles and metal particles are chemically bonded.
- a cover may be wrapped on the outer side of the carbon nanotube heating coating layer.
- the cover may be made of any one selected from leather, cloth, and PU (polyurethane).
- a transfer layer may be formed on the outer side of the carbon nanotube heating coating layer by a hydrostatic transfer method.
- An outer coating layer may be formed outside the transfer layer.
- FIG. 2 is a plan view showing a heat steering handle to which the present invention is applied (a cover is removed from the spoke), and FIG. 3 is a cross-sectional view taken along the line A-A of FIG.
- the heat steering handle 100 to which the present invention is applied the synthetic resin portion 120 is formed on the outer side of the core 110 made of steel or light alloy, the carbon nano-carbon on the outer surface of the synthetic resin portion 120 A carbon nanotube heating coating layer 130 having a tube-metal particle composite composition coated thereon is formed, and a cover 140 is wrapped on the outer side of the carbon nanotube heating coating layer 130.
- the core 110 is formed of a rim 111 and the spokes 112, and may have various cross-sectional shapes such as a circular cross section, a c cross section or an H cross section.
- the synthetic resin unit 120 is formed by forming a foam (foam: expanded plastic) by using PU (polyurethane), EPS (expanded polystyrene) or EPP (expanded polypropylene) as a raw material, or injection using synthetic resin such as ABS. It is formed by molding.
- PU polyurethane
- EPS expanded polystyrene
- EPP expanded polypropylene
- the carbon nanotube heating coating layer 130 is a layer coated by spraying the carbon nanotube-metal particle composite composition on the synthetic resin part 120, and metal particles such as silver (Ag) particles on the carbon nanotube (CNT). It is particularly preferable to spray-coat a chemically bonded carbon nanotube-metal particle composite composition.
- the coating mass per unit area of the carbon nanotube heating coating layer 130 is preferably 3 to 15 g / m 2.
- the electrode 131 is electrically connected to the carbon nanotube heating coating layer 130 to induce heat generation.
- the temperature controller 132 may be connected to the electrode 131 as necessary, a temperature controller 132 may be installed due to the intrinsic characteristics (charge control) of the carbon nanotubes (CNT) itself. You may not.
- a power connector 133 is connected to the temperature controller 132.
- Carbon nanotubes are anisotropic materials with diameters and lengths of several to several hundred micrometers ( ⁇ m).
- one carbon atom combines with three other carbon atoms to form a hexagonal honeycomb pattern.
- Draw this honeycomb pattern on flat paper then roll the paper round to form a nanotube structure.
- one nanotube has the shape of a hollow tube or cylinder. This is called nanotubes because they are usually as small as one nanometer (one billionth of a meter).
- the honeycomb pattern on the paper is rounded to form a nanotube.
- the carbon nanotube can be either an electrical conductor (Armchair) or a semiconductor (ZigZag structure).
- the cover 140 is a finish made of leather or cloth or PU (polyurethane), the leather or cloth is wrapped around the carbon nanotube heating coating layer 130 is bonded by sewing, etc., the PU (polyurethane) is carbon nano It is coupled by coating or the like so as to surround the tube heating coating layer 130.
- the heat steering handle according to the present invention configured as described above forms a synthetic resin part 120 on the outer side of the core 110, as shown in the process diagram of FIG. 5 and the flow chart of FIG. 6 (S1).
- the carbon nanotube exothermic coating layer 130 is formed by spraying a dispersion (Lq), which is a carbon nanotube-metal particle composite composition in which metal particles are chemically bonded to the surface of the carbon nanotube, on the outside of the unit 120.
- the electrode 131 is formed on the carbon nanotube heating coating layer 130 (S3), and if necessary, a temperature controller 132 is installed, and then the cover 140 is disposed outside the carbon nanotube heating coating layer 130. ) And wrap it together to complete it.
- the synthetic resin portion 120 is formed on the outer side of the core 110, the carbon nanotube heating coating layer on the outer surface of the synthetic resin portion 120 130 is formed.
- a pattern transfer layer 150 made of wood or metal may be formed on the outside of the carbon nanotube heating coating layer 130, and an outer coating layer 160 may be further formed on the outside of the transfer layer 150.
- the pattern transfer layer 150 such as wood or metal is formed by a known hydraulic transfer method, and the outer coating layer 160 may be coated by various materials and various methods known in the art.
- the carbon nanotube heating element applied to the heating steering wheel of the present invention has excellent heat transfer efficiency for the heating element and a temperature rising time to reach the maximum temperature because the contact surface of the heating element and the heating layer is full.
- the heating element made of the carbon nanotube-metal particle composite composition in which metal particles are chemically bonded to the carbon nanotube surface has a property of positive temperature coefficiency (PTC), so that the temperature resistance coefficient is almost zero, and the resistance value is repeated even in repeated use. It is easy to secure reliability without any change. This is not only corrected by mixing a carbon having a negative temperature resistance coefficient and a metal having a positive temperature resistance coefficient, but also a metal particle using a chemical bond on a carbon nanotube (CNT) surface. The above characteristics are realized by the coupling of the conductors.
- PTC positive temperature coefficiency
- the electrical network model in Figure 8 (a) is a general carbon is a carbon and carbon particles in contact with the electricity in the electrical conducts the electricity is due to this, there is a possibility that the carbon particles agglomerate at a specific site when the coating is applied to a specific site It generates a lot of heat.
- the carbon nanotubes (CNT) realize an electrical network phenomenon through which electricity flows even when the particles are not attached and have a certain distance. This results in a performance that is equal to or higher than the content of ordinary carbon, thereby eliminating the possibility of agglomeration of carbon nanotube (CNT) particles at a specific site, and thus having a uniform heating distribution without collecting heat.
- the heat steering handle of the present invention replaces the process of attaching a heating pad to the heat steering wheel by using a process of spraying a conductor such as carbon nanotube (CNT) and metal particles, thereby significantly reducing the manufacturing cost. Can be saved.
- a conductor such as carbon nanotube (CNT) and metal particles
- CNT carbon nanotube
- metal particles thereby significantly reducing the manufacturing cost.
- a separate temperature controller is not necessarily required.
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Abstract
Description
Claims (14)
- a) 탄소나노튜브가 분산된 탄소나노튜브 분산용액을 제조하는 단계;b) 상기 a) 단계의 탄소나노튜브 분산용액을 산처리하는 단계;c) 상기 b) 단계의 탄소나노튜브 분산용액을 중화처리하는 단계; 및d) 상기 c) 단계의 탄소나노튜브 분산용액과 금속입자를 포함하는 금속용액을 혼합하여, 탄소나노튜브 표면에 금속입자를 결합시키는 단계를 포함하는 탄소나노튜브-금속입자 복합 조성물.
- 청구항 1에 있어서, 상기 a) 단계의 탄소나노튜브는, MWNT(multi wall nanotube); TWNT(Thin wall nanotube); 및 SWNT(single wall nanotube) 중에서 선택된 1종 이상인 것인 탄소나노튜브-금속입자 복합 조성물.
- 청구항 1에 있어서, 상기 a) 단계에서 분산용액은, 상기 탄소나노튜브를 용매에 분산시켜 제조한 것인 탄소나노튜브-금속입자 복합 조성물.
- 청구항 1에 있어서, 상기 b) 단계에서는, 질산, 황산, 염산, 및 과염소산 중에서 선택된 1종 이상을 첨가하여 산처리하는 것인 탄소나노튜브-금속입자 복합 조성물.
- 청구항 1에 있어서, 상기 c) 단계에서는, 수산화나트륨 수용액, 수산화칼륨 수용액 및 수산화 암모늄 수용액 중에서 선택된 1종 이상을 첨가하여 중화처리하는 것인 탄소나노튜브-금속입자 복합 조성물.
- 청구항 5에 있어서, 상기 c) 단계에서는, 상기 b) 단계의 탄소나노튜브 분산용액과 수산화나트륨 수용액, 수산화칼륨 수용액 및 수산화 암모늄 수용액 중에서 선택된 1종 이상을 초음파를 이용하여 혼합하는 것인 탄소나노튜브-금속입자 복합 조성물.
- 청구항 1에 있어서, 상기 d) 단계에서 금속입자를 포함하는 금속용액은, 용매; TOAB, 1,2-디클로로벤젠(1,2-dichlorobenzene), N-메틸피롤리돈(NMP: N-methlypyrrolidone) 및 N,N-디메틸포름아미드(DMF: N,N-dimethylformamide) 중에서 선택된 1종에 포름알데히드(formaldehyde) 또는 아세트알데히드(acetaldehyde)를 혼합한 용액; 및 Ag, Pt, Pd, Au, Cu, Ni, Al, Ag/Cu, Ag/Ni의 염 중 중에서 선택된 1종 이상의 금속염을 혼합하여 제조한 것인 탄소나노튜브-금속입자 복합 조성물.
- 청구항 1에 있어서, 상기 d) 단계에서 탄소나노튜브 표면에 금속입자는 Ag, Pt, Pd, Au, Cu, Ni, Al, Ag/Cu, Ag/Ni 및 Cu/Ni 중 선택된 1종 이상인 것인 탄소나노튜브-금속입자 복합 조성물.
- 청구항 1에 있어서, 상기 d) 단계의 용액을 MEK, MIBK, 아세톤(acetone), 시클로헥사논(cyclohexanone), 케톤계 용액, 부톡시에틸아세테이트(butoxyethyl acetate), 부틸카비톨아세테이트(BCA: butyl cabitol acetate) 및 아세테이트계 용액 중 선택된 1종 이상에 분산시켜 분산용액을 제조하는 단계; 및상기 분산용액과 바인더를 혼합시키는 단계를 더 포함하는 것인 탄소나노튜브-금속입자 복합 조성물.
- 조향핸들의 강성을 유지하는 코어와,상기 코어의 외측부에 형성된 합성수지부와,상기 합성수지부의 외측면에, 청구항 1 내지 청구항 9 중 어느 한 항에 따른 탄소나노튜브-금속입자 복합 조성물이 코팅형성된 탄소나노튜브 발열코팅층과,상기 탄소나노튜브 발열코팅층에 전기적으로 연결되어 발열을 유도하는 전극을 포함하는 것을 특징으로 하는 발열 조향핸들.
- 청구항 10에 있어서,상기 탄소나노튜브 발열코팅층의 외측에는 커버가 감싸져 있는 것을 특징으로 하는 발열 조향핸들.
- 청구항 11에 있어서,상기 커버는 가죽, 천 및 PU(폴리 우레탄) 중에서 선택된 그 어느 하나로 이루어진 것을 특징으로 하는 발열 조향핸들.
- 청구항 10에 있어서,상기 탄소나노튜브 발열코팅층의 외측에는 수압전사 공법에 의한 전사층이 형성되어 있는 것을 특징으로 하는 발열 조향핸들.
- 청구항 13에 있어서,상기 전사층 외측에는 외부코팅층이 형성되어 있는 것을 특징으로 하는 발열 조향핸들.
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US13/386,475 US20120118868A1 (en) | 2009-02-06 | 2010-07-30 | Carbon nanotube-metal particle complex composition and heated steering wheel using the same |
DE112010003312T DE112010003312T8 (de) | 2009-08-20 | 2010-07-30 | Kohlenstoffnanoröhrchen-Metallteilchen Komplexzusammensetzung und beheiztes Lenkrad, das dieselbe verwendet |
JP2012524632A JP5603939B2 (ja) | 2009-08-20 | 2010-07-30 | 炭素ナノチューブ−金属粒子複合組成物及びそれを用いた発熱操向ハンドル |
CN201080031626.9A CN102471050B (zh) | 2009-08-20 | 2010-07-30 | 碳纳米管-金属粒子复合组合物及利用其的发热方向盘 |
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KR1020090077258A KR101116472B1 (ko) | 2009-02-06 | 2009-08-20 | 탄소나노튜브-금속입자 복합 조성물 및 이를 이용한 발열 조향핸들 |
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DE102012214752B4 (de) | 2012-08-20 | 2014-09-25 | Takata AG | Fahrzeuglenkrad |
KR20140105640A (ko) * | 2013-02-22 | 2014-09-02 | (주)엘지하우시스 | 복사열을 이용한 자동차용 면상 발열체 |
KR101447478B1 (ko) | 2013-07-12 | 2014-10-06 | (주)바이오니아 | 탄소나노튜브 또는 탄소나노튜브-금속 복합체를 이용한 세라믹 페이스트 조성물 및 이를 포함하는 도전성 필름 |
DE102015206662B3 (de) * | 2015-04-14 | 2016-07-14 | Takata AG | Lenkradbaugruppe |
JP2019179726A (ja) * | 2018-03-30 | 2019-10-17 | 古河電気工業株式会社 | ヒーター |
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- 2010-07-30 DE DE112010003312T patent/DE112010003312T8/de not_active Expired - Fee Related
- 2010-07-30 CN CN201080031626.9A patent/CN102471050B/zh not_active Expired - Fee Related
- 2010-07-30 WO PCT/KR2010/005041 patent/WO2011021794A2/ko active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2006513092A (ja) * | 2003-01-31 | 2006-04-20 | ヴィー・エー・テー・オートモーティヴ・システムス・アクチェンゲゼルシャフト | 加熱ハンドル及びそれを形成する方法 |
KR20040106947A (ko) * | 2003-06-05 | 2004-12-20 | 삼성전자주식회사 | 금속나노입자 및 카본나노튜브를 이용한 도전성 필름 또는패턴 형성방법 |
KR20060005316A (ko) * | 2005-12-27 | 2006-01-17 | 홍성태 | 차량핸들보온장치 |
KR20070079862A (ko) * | 2006-02-03 | 2007-08-08 | (주) 나노텍 | 탄소나노튜브를 이용한 발열체 |
Also Published As
Publication number | Publication date |
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CN102471050B (zh) | 2014-08-06 |
DE112010003312T5 (de) | 2012-06-28 |
CN102471050A (zh) | 2012-05-23 |
DE112010003312T8 (de) | 2012-11-29 |
WO2011021794A3 (ko) | 2011-06-30 |
JP5603939B2 (ja) | 2014-10-08 |
JP2013501703A (ja) | 2013-01-17 |
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